Singer Shin Seung Hoon is planning to make a comeback to the music industry after 4 years.

On October 10th, Shin Seung Hoon uploaded onto his agency Dorothy Company's official Facebook, "I'm finally done with all the music production! Now it's time for me to make the change from producer mode to singer mode. Transform!" and uploaded a photo with it.

In the photo, Shin Seung Hoon is making a very satisfied expression, and is posing with a "V." Especially to note was his casual look and unchanging youthful face.

Shin Seung Hoon will announce his new album Great Wave on October 23rd. Following his 2008 album Radio Wave and 2009 album Love O'Clock, this will be his first new album in 4 years. It will be the final album of the 3-part album series, which he's been working on for the past 6 years.

The album is expected to include genres such as British pop, hip hop, disco, and ballad.

Shin Seung Hoon is expected to begin his album promoting activities as soon as he releases Great Wave. He will be starring in various TV shows, and will even hold a festival called '2013 The Shin Seung Hoon Show - Great Wave.'

Photo credit: Dorothy Company